Terrence Howard

Prisoners starts out as a pretty realistic story about youngsters who go missing, morphs into a story of how people react to terrible loss and lust for vengeance-- almost an anti-vigilante story-- and ends up as a fairly standard mystery with a lot of twists and turns.

And, and is common these days, it's less a trail of clues to be unraveled to a logical solution than a story of dogged pursuit of possible suspects, until almost by accident the truth comes out.